Title :
Measurements of crosspolarisation and gain reduction due to dust on a microwave reflector antenna
Author :
Bashir, S.O. ; McEwan, Neil J.
Author_Institution :
University of Bradford, Postgraduate School of Electrical & Electronic Engineering, Bradford, UK
Abstract :
9 GHz measurements of effects of dust accretion on the surface of a reflector antenna confirm an earlier prediction of a larger gain reduction when the dust layer covers half the area. Crosspolarisation levels were higher than expected theoretically. Deposits on the primary feed also cause high crosspolarisation.
Keywords :
antenna feeders; electromagnetic wave polarisation; microwave antennas; reflector antennas; 9 GHz; crosspolarisation; dust accretion; gain reduction; microwave reflector antenna; primary feed;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850808
